Potassium and sodium current noise from squid axon membranes

  • Louis J. DeFelice
  • E. Wanke
  • F. Conti
Part of the Faseb Monographs book series (FASEBM, volume 5)


Current noise under voltage clamp has been measured from the giant axon of Loligo vulgaris. Relatively large areas (up to 0.4 cm2) were used for these measurements, under standard space clamped conditions. Current noise spectral densities were studied in the range of 0 to 20 C, -100 to -40 mV and in normal, tetrodotoxin, and tetraethylammonium ion solutions. Three components of current noise were found, l/f-noise, and a K and a Na component.—DeFelice, L. J., E. Wanke And F. Conti. Potassium and sodium current noise from squid axon membranes. Federation Proc. 34: 1338–1342, 1975.


Current Noise Voltage Noise Giant Axon Optimal Area Squid Giant Axon 
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Copyright information

© Federation of American Societies 1975

Authors and Affiliations

  • Louis J. DeFelice
    • 1
    • 2
  • E. Wanke
    • 1
    • 2
  • F. Conti
    • 1
    • 2
  1. 1.Department of AnatomyEmory UniversityAtlantaUSA
  2. 2.Laboratorio di Cibernetica e BiofisicaCamogli (Genova)Italy

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